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Real Time Clock Multiplexed 114BYTE 24 Pin Edip

View DS12887: Multiplexed Real Time Clock

DS12887: Multiplexed Real Time Clock


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Dallas Semiconductor
Jameco Part no. 133452
Manufacturer DALLAS SEMICONDUCTOR
Manufacturer no. DS12887
Catalog 142 , page 8
Pricing & Availability

$6.95

# of Unit Price
1+ $6.95
10+ $5.95
100+ $4.95
  • Availability:Ship  5 Days ARO 

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Multiplexed Real Time Clock


Features:

  • Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation valid up to 2100
  • Binary or BCD representation of time, calendar, and alarm
  • 12- or 24-hour clock with AM and PM in 12-hour mode
  • Daylight Savings Time option
  • Selectable between Motorola and Intel bus timing
  • Multiplex bus for pin efficiency
  • Interfaced with software as 128 RAM locations
    • 14 bytes of clock and control registers
    • 114 bytes of general purpose RAM
  • Programmable square wave output signal
  • Three interrupts are separately software-maskable and testable
    • Time-of-day alarm once/second to once/day
    • Periodic rates from 122 ms to 500 ms
    • End of clock update cycle

    Specifications:

  • Operating temperature: 0°C to 70°C
  • Mounting: through hole
  • Pin count: 24-Pin
  • Dimensions: 34.04mm (L) x 18.8mm (W) x 9.4mm (H) (max)
  • Bus type: multiplexed
  • Minimum operating supply voltage: 4.5V
  • Typical operating supply voltage: 5V
  • Maximum operating supply voltage: 5.5V

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  • Specification Value
    FamilyDS12887
    Minimum Operating Temperature0°C
    Maximum Operating Temperature70°C
    Screening LevelCommercial
    MountingThrough Hole
    Pin_Count24
    Supplier_PackageEDIP
    Product Width18.8mm(Max)
    Product Height9.4mm(Max)
    Product Length34.04mm(Max)
    Specification Value
    FunctionClock/Calendar/Alarm
    Product TypeReal Time Clock
    Bus TypeMultiplexed
    Date FormatDW:DM:M:Y|Binary
    Time FormatHH:MM:SS|Binary
    User RAM114Byte
    Minimum Operating Supply Voltage4.5V
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage5.5V


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